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1.05092

Supelco

Potassium peroxodisulfate

for analysis (<= 0.001% N) EMSURE® ACS,Reag. Ph Eur

Synonym(s):

Potassium peroxodisulfate, Potassium persulfate

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About This Item

Empirical Formula (Hill Notation):
K2O8S2
CAS Number:
Molecular Weight:
270.32
MDL number:
UNSPSC Code:
12352302
EC Index Number:
231-781-8
NACRES:
NA.21

grade

ACS reagent

Quality Level

agency

reag. Ph. Eur.

product line

EMSURE®

assay

≥99.0% (iodometric)

form

solid

potency

802 mg/kg LD50, oral (Rat)

impurities

≤0.005% Insoluble matter

pH

3.2 (20 °C, 50 g/L in H2O)

mp

100 °C (decomposition)

density

2.48 g/cm3 at 20 °C

bulk density

1150 kg/m3

anion traces

chloride (Cl-): ≤0.001%

cation traces

Fe: ≤0.0005%
Mn: ≤0.0001%
N: ≤0.001%
heavy metals (as Pb): ≤0.001%

storage temp.

2-30°C

InChI

1S/2K.H2O8S2/c;;1-9(2,3)7-8-10(4,5)6/h;;(H,1,2,3)(H,4,5,6)/q2*+1;/p-2

InChI key

USHAGKDGDHPEEY-UHFFFAOYSA-L

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Analysis Note

Assay (iodometric): ≥ 99.0 %
Insoluble matter: ≤ 0.005 %
Entire chloride: ≤ 0.001 %
Total nitrogen (N): ≤ 0.001 %
Heavy metals (as Pb): ≤ 0.001 %
Fe (Iron): ≤ 0.0005 %
Mn (Manganese): ≤ 0.0001 %
Corresponds to ACS, Reag. Ph Eur

Legal Information

EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany

signalword

Danger

Hazard Classifications

Acute Tox. 4 Oral - Eye Irrit. 2 - Ox. Sol. 3 - Resp. Sens. 1 - Skin Irrit. 2 - Skin Sens. 1 - STOT SE 3

target_organs

Respiratory system

Storage Class

5.1B - Oxidizing hazardous materials

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable


Certificates of Analysis (COA)

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Protocols

The article describes the sample preparation and photometric determination of silver concentration in water samples using Spectroquant® photometers and test kits.

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